Bidirectional flow service support method in IEEE 802.16/wibro system
a service support and flow management technology, applied in the field of wideband wireless connection communication system bidirectional service flow management method, can solve the problems of wasting resources, difficult to reflect the intrinsic characteristics of the 802.16/wibro system, and each detailed technology has not been determined
Inactive Publication Date: 2009-03-05
POSTECH ACAD IND FOUND +3
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Benefits of technology
The present invention provides a method for supporting a bidirectional flow service in an IEEE 802.16 / WiBro system using a single flow initiation process. This method allows for the allocation of information areas in a revised dynamic service addition message to designate the bidirectional flow management information. The method also includes a computer-readable recording medium storing a program for executing the method. The technical effect of this invention is to enable a bidirectional flow service in a more efficient and flexible way, with a single control message negotiation process and a strict service guarantee.
Problems solved by technology
Therefore, although technologies of general items are classified and expressed by the IEEE / TTA working group, each detailed technology has not been finally determined.
Furthermore, since a study relating to the admission control in the 802.16 / WiBro system is currently at an initial stage, and an algorithm used in the conventional 3rd generation communication technology is applied to perform the admission control, it is difficult to reflect intrinsic characteristics of the 802.16 / WiBro system.
The conventional 802.16 / WiBro system performs a different flow initiation process with regard to an uplink and a downlink, which causes a waste of resources and a waste of time when communicating a control message.
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[0038]The attached drawings for illustrating exemplary embodiments of the present invention are referred to in order to gain a sufficient understanding of the present invention, the merits thereof, and the objectives accomplished by the implementation of the present invention.
[0039]FIG. 1 illustrates the structure of an IEEE 802.16 / WiBro network to which the present invention is applied. Referring to FIG. 1, the IEEE 802.16 / WiBro network comprises a subscriber station (SS) 101 that is a user terminal supporting an IEEE 802.16 protocol, a base station (BS) 102 that controls and manages a connection with the SS 101, and an access router (AR) 103 that transmits traffic received through the BS 102 to an Internet backbone network.
[0040]The IEEE 802.16 / WiBro network basically provides a variety of quality of services (QoSs). A variety of QoS parameters, such as bandwidth, change according to services provided by an application layer of the SS 101. In the IEEE 802.16 / WiBro network, the cha...
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Provided is a bidirectional service flow management method in a wideband wireless connection communication system, and more particularly, a method of performing a bidirectional flow establishment. The method of providing a flow service in an IEEE 802.16 / WiBro includes: generating a revised dynamic service addition (DSA) related message in which an area for designating bidirectional flow management information is allocated from a standard DSA related message; and performing a bidirectional flow initialization process between a subscriber station (SS) and a base station (BS) via single control message negotiation based on the revised DSA related message.
Description
CROSS-REFERENCE TO RELATED PATENT APPLICATION[0001]This application claims the benefit of Korean Patent Application No. 10-2007-0087276, filed on Aug. 29, 2007, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a bidirectional service flow management method in a wideband wireless connection communication system, and more particularly, to a method of establishing a bi-directional flow.[0004]2. Description of the Related Art[0005]Technology of the 802.16 system has been standardized by the IEEE / TTA working group, and has been commercialized in Korea as wireless broadband (WiBro). Therefore, although technologies of general items are classified and expressed by the IEEE / TTA working group, each detailed technology has not been finally determined.[0006]With regard to a technology for managing a data flow that can be classif...
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IPC IPC(8): G06F15/16H04L47/76
CPCH04L47/824H04W28/16H04W72/00H04L47/10H04L12/5695H04L47/76H04W72/1268H04W76/02H04L47/70H04W76/10H04W72/20
Inventor BAEK, JOO-YOUNGKWAK, MIN-KONKWON, DONG-HEESUH, YOUNG JOO
Owner POSTECH ACAD IND FOUND